bn:00031261n
Noun Concept
Categories: Articles with short description, Calendar eras, Units of time, Calendaring standards, Chronology
EN
era  epoch  period  Éra  calendar epoch
EN
A period marked by distinctive character or reckoned from a fixed point or event WordNet 3.0
English:
timekeeping
popular music
date
Definitions
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EN
A period marked by distinctive character or reckoned from a fixed point or event WordNet 3.0 & Open English WordNet
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. Wikipedia
An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. Wikipedia
Instant in time chosen as the origin of a particular calendar era. Wikipedia Disambiguation
Span of time marked by people, events, geological periods, etc. Wikidata
A period of time in history seen as a single coherent entity. OmegaWiki